9. sales tax is 7.596. how much did tammy's lunch cost before tax if the tax on it was $0.727 define a variable and write an equation. solve the
equation and check your solution.

Cost of Tammy's lunch box before tax = $9.571

Step-by-step explanation:

Let the cost of Tammy's lunch box before tax be =$

Sales tax charged = $0.727

Sales tax rate =7.596%

Sales tax charged in terms of  will be = 7.596% of the Original cost of lunch box

So, we have,

Dividing both sides by

∴

∴ Cost of Tammy's lunch box before tax = $9.571

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.